US4653303A - Apparatus for continuously brushing and lubricating rolls of rolling mills for flat rolled products - Google Patents

Apparatus for continuously brushing and lubricating rolls of rolling mills for flat rolled products Download PDF

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Publication number
US4653303A
US4653303A US06/761,381 US76138185A US4653303A US 4653303 A US4653303 A US 4653303A US 76138185 A US76138185 A US 76138185A US 4653303 A US4653303 A US 4653303A
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United States
Prior art keywords
enclosure
roll
lubricant
brush
rolls
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Expired - Lifetime
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US06/761,381
Inventor
Robert Richard
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Cegedur Societe de Transformation de lAluminium Pechiney SA
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Cegedur Societe de Transformation de lAluminium Pechiney SA
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Assigned to CEGEDUR SOCIETE DE TRANSFORMATION DE L'ALUMINIUM PECHINEY reassignment CEGEDUR SOCIETE DE TRANSFORMATION DE L'ALUMINIUM PECHINEY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: RICHARD, ROBERT
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B2003/001—Aluminium or its alloys

Definitions

  • the invention relates to an apparatus for continuously brushing and lubricating rolls of rolling mills for flat rolled products without such products being polluted by the lubricant used; it can be used for hot or cold rolling of metallurgical products, in particular Al and alloys thereof.
  • An enclosure of general parallelepipedic shape is applied to each of the rolls, preferably on the discharge side, the enclosure being open on one face and the two opposite sides thereof, which are adjacent to the opening, being defined by a circular arc whose radius is substantially equal to the radius of the working rolls; the edge of the opening is provided with a continuous resilient peripheral seal.
  • Each of the enclosures is caused to bear against the corresponding roll by means of pneumatic jacks or any other equivalent means (spring, etc. . . . ). The space defined by the enclosure, the peripheral seal thereof and the corresponding roll is therefore closed and tight.
  • rotary brushes Disposed in the lower part of the enclosures in parallel relationship with the working rolls and in contact therewith are two rotary brushes (one per enclosure) which are continuously moved mechanically in a single direction, preferably at the same speed and in the opposite direction to the rotary movement of the rolls.
  • the rotary motion is communicated to the brush shafts in known fashion by a chain driven by a motor.
  • the transmission assembly which is coupled to the motor is disposed in a casing provided with conventional sealing means.
  • the rolling lubricant is distributed in the upper part and in the vicinity of the same generatrix of the rolls by one or more nozzles (for example 3: one central and two lateral).
  • the nozzles provide for spraying or sprinkling the working roll; the lubricant is then recovered in the bottom of the enclosures from which it is picked up again by a pump.
  • the level of lubricant, as determined by the height of the pick-up pipe or pipes is such that the brushes are immersed therein, up to the vincinity of their axis of rotation.
  • Lubricant pick-up is effected for example by a displacement pump so as to generate a depression in the enclosure; that provides for avoiding any accidental leakage of the lubricant on to the product in the event of failure or local imperfection in the peripheral sealing means of the enclosure.
  • the conditions of use of the two enclosures (nature and speed of rotation of the brushes, lubricant flow rate and depression) in relation to each of the rolls are identical.
  • the cross-section of the peripheral seal is a point of major importance. It has been found that the seal, which is continuous, must have a cylindrical convex surface along the generatrices of the roll and the corresponding toric surface along the two cross-sections of the roll.
  • FIG. 1 shows a view in longitudinal section of the apparatus
  • FIG. 2 shows the section and transverse dimensions of one of the seals used.
  • two enclosures 4a and 4b Disposed on the downstream side of the rolls are two enclosures 4a and 4b which bear against the rolls by way of a peripheral seal 5 under the action of jacks (not shown).
  • Disposed in each of the enclosures are two steel rotary brushes 6a and 6b, with a diameter of 150 mm, being moved in the direction indicated by the arrows by an electric motor at a speed of 750 rpm.
  • the brushes are caused to bear against the rolls by two pneumatic jacks (not shown) which themselves bear against the rearward wall of the enclosure.
  • nozzles or jets 7a and 7b for distributing the lubricating emulsion at a rate of 10 m3/hour.
  • the emulsion is picked up by the outlet pipes 8a and 8b.
  • the flow rate of the feed and pick-up pumps (not shown) is so regulated that the vacuum gauge 9a, 9b installed on the enclosure shows a depression of from 10 to 20 kPa.
  • the diameter of the rolls decreases and the radius of the enclosures is adapted to the profile of the rolls every 6 millimeters.
  • the peripheral seal 5 used is a seal of PERBUNAN whose cross-section and dimensions are shown in FIG. 2.
  • the rolling conditions are as follows:

Abstract

Apparatus for continuously brushing and lubricating rolls of rolling mills for rolled flat products without pollution of said products by the lubricant used; it can be used in hot or cold rolling, in particular for Al or alloys thereof.
An enclosure of general parallelepipedic shape which is open on one face and whose opposite sides which are adjacent to the opening are delimited by a circular arc, the radius of which is substantially equal to that of the roll, is applied thereto by way of a continuous resilient peripheral seal. The enclosure which contains the rotary brushes is lubricated by oil circulation and is under a slight depression.

Description

The invention relates to an apparatus for continuously brushing and lubricating rolls of rolling mills for flat rolled products without such products being polluted by the lubricant used; it can be used for hot or cold rolling of metallurgical products, in particular Al and alloys thereof.
In regard to hot or cold rolling of aluminium or alloys thereof, it is known that the surface condition of the product is governed by the surface condition of the rolls and the conditions of lubrication. In conventional rolling, it is difficult to achieve a satisfactory surface condition because of the formation of stains on the product, which are due to the residues of lubricant in the rolling operation itself or when carrying out subsequent treatments such as annealing operations.
Such defects can only be eliminated by additional cleaning and/or degreasing operations (before heat treatment), which are long and expensive processes.
Such difficulties are overcome by using an apparatus for continuously brushing and lubricating the rolls, being the subjectmatter of the present invention and described hereinafter.
For the purposes of this description, it will be assumed that the rolls have their axes horizontal, as is always the case.
An enclosure of general parallelepipedic shape is applied to each of the rolls, preferably on the discharge side, the enclosure being open on one face and the two opposite sides thereof, which are adjacent to the opening, being defined by a circular arc whose radius is substantially equal to the radius of the working rolls; the edge of the opening is provided with a continuous resilient peripheral seal. Each of the enclosures is caused to bear against the corresponding roll by means of pneumatic jacks or any other equivalent means (spring, etc. . . . ). The space defined by the enclosure, the peripheral seal thereof and the corresponding roll is therefore closed and tight.
Disposed in the lower part of the enclosures in parallel relationship with the working rolls and in contact therewith are two rotary brushes (one per enclosure) which are continuously moved mechanically in a single direction, preferably at the same speed and in the opposite direction to the rotary movement of the rolls.
The rotary motion is communicated to the brush shafts in known fashion by a chain driven by a motor. The transmission assembly which is coupled to the motor is disposed in a casing provided with conventional sealing means. In each enclosure, the rolling lubricant is distributed in the upper part and in the vicinity of the same generatrix of the rolls by one or more nozzles (for example 3: one central and two lateral). The nozzles provide for spraying or sprinkling the working roll; the lubricant is then recovered in the bottom of the enclosures from which it is picked up again by a pump. The level of lubricant, as determined by the height of the pick-up pipe or pipes is such that the brushes are immersed therein, up to the vincinity of their axis of rotation.
Lubricant pick-up is effected for example by a displacement pump so as to generate a depression in the enclosure; that provides for avoiding any accidental leakage of the lubricant on to the product in the event of failure or local imperfection in the peripheral sealing means of the enclosure.
Generally, the conditions of use of the two enclosures (nature and speed of rotation of the brushes, lubricant flow rate and depression) in relation to each of the rolls are identical.
The cross-section of the peripheral seal is a point of major importance. It has been found that the seal, which is continuous, must have a cylindrical convex surface along the generatrices of the roll and the corresponding toric surface along the two cross-sections of the roll.
In that way it was possible to achieve a perfect seal between the enclosure and the roll.
The invention will be better appreciated by reference to the following example which is illustrated in the following drawing in which:
FIG. 1 shows a view in longitudinal section of the apparatus, and
FIG. 2 shows the section and transverse dimensions of one of the seals used.
The product 1 which is engaged at the upstream side of the working rolls 2a and 2b, with a diameter of 600 mm, of a two-high rolling mill, issues therefrom in the form of a rolled strip 3. Disposed on the downstream side of the rolls are two enclosures 4a and 4b which bear against the rolls by way of a peripheral seal 5 under the action of jacks (not shown). Disposed in each of the enclosures are two steel rotary brushes 6a and 6b, with a diameter of 150 mm, being moved in the direction indicated by the arrows by an electric motor at a speed of 750 rpm. The brushes are caused to bear against the rolls by two pneumatic jacks (not shown) which themselves bear against the rearward wall of the enclosure.
Provided in the upper part of the enclosure are three nozzles or jets 7a and 7b for distributing the lubricating emulsion at a rate of 10 m3/hour. The emulsion is picked up by the outlet pipes 8a and 8b. The flow rate of the feed and pick-up pumps (not shown) is so regulated that the vacuum gauge 9a, 9b installed on the enclosure shows a depression of from 10 to 20 kPa.
It will be appreciated that, in successive roll grinding operations, the diameter of the rolls decreases and the radius of the enclosures is adapted to the profile of the rolls every 6 millimeters.
The peripheral seal 5 used is a seal of PERBUNAN whose cross-section and dimensions are shown in FIG. 2.
It is formed by two straight portions and two sectors which are assembled by glueing.
In the embodiment being considered, the rolling conditions are as follows:
strip of A5 width: 1000 mm
rolling speed (exit): 50 meters/minute
metal entry temperature: 450° C.
entry thickness: 7.5 mm
exit thickness: 3 mm

Claims (10)

I claim:
1. Apparatus for lubricating and brushing the surface of the working rolls in a rolling mill for rolling flat products comprising:
at least one enclosure positioned in contact with each roll and including sealing means between said enclosure and said roll;
at least one lubricant feed pipe and at least one lubricant discharge pipe extending into and out of said enclosure for introducing and removing lubricant to the interior of said enclosure;
at least one rotary brush within each enclosure and positioned in contact with said roll and wherein said lubricant discharge pipe is disposed at substantially the same level as the axis of rotation of said brush within said enclosure.
2. Apparatus according to claim 1 wherein the lubricant feed pipe includes at least one nozzle which is disposed in the upper part of the enclosure and is equipped with an end positioned to direct lubricant against said roll.
3. Apparatus according to claim 1 wherein the peripheral sealing means is of a cylindrical convex form corresponding to the roll and the corresponding toric form along the cross-sections of the roll.
4. The apparatus according to claim 1 wherein each said brush is continuously rotated in a single direction.
5. The apparatus according to claim 4 wherein each said brush rotates at the same rotational speed.
6. The apparatus according to claim 4 wherein each said brush rotates in the opposite direction to the corresponding roll.
7. The apparatus according to claim 6 wherein a reduced pressure atmosphere is generated in the enclosure.
8. The apparatus of claim 3 wherein during the rolling operation each brush is continuously rotated in a single direction.
9. The apparatus according to claim 8 wherein each of the brushes rotate at the same speed.
10. The apparatus according to claim 9 wherein each of the brushes rotate in the opposite direction to the corresponding roll.
US06/761,381 1984-08-02 1985-08-01 Apparatus for continuously brushing and lubricating rolls of rolling mills for flat rolled products Expired - Lifetime US4653303A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8412496 1984-08-02
FR8412496A FR2568495B1 (en) 1984-08-02 1984-08-02 DEVICE FOR BRUSHING AND CONTINUOUS LUBRICATION OF ROLLER ROLLS FOR FLAT ROLLER PRODUCTS.

Publications (1)

Publication Number Publication Date
US4653303A true US4653303A (en) 1987-03-31

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US06/761,381 Expired - Lifetime US4653303A (en) 1984-08-02 1985-08-01 Apparatus for continuously brushing and lubricating rolls of rolling mills for flat rolled products

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US (1) US4653303A (en)
EP (1) EP0172777B1 (en)
JP (1) JPS6146308A (en)
KR (1) KR890003801B1 (en)
AT (1) ATE33566T1 (en)
AU (1) AU575980B2 (en)
BR (1) BR8503641A (en)
DE (1) DE3562190D1 (en)
ES (1) ES8702182A1 (en)
FR (1) FR2568495B1 (en)
GR (1) GR851799B (en)
HK (1) HK81689A (en)
IN (1) IN162078B (en)
MX (1) MX167732B (en)
NO (1) NO160973C (en)
RO (1) RO94102B (en)
SG (1) SG31789G (en)
TR (1) TR23180A (en)
YU (1) YU44517B (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4934444A (en) * 1987-10-23 1990-06-19 Lauener Engineering, Ltd. Device and method for cooling rolls
US4983248A (en) * 1987-12-16 1991-01-08 Somar Corporation Thin-film coating method and apparatus therefor
US4986873A (en) * 1988-01-30 1991-01-22 Somar Corporation Thin-film coating apparatus
US5048453A (en) * 1988-09-27 1991-09-17 Btg Kalle Inventing Ab Coating device
US5207159A (en) * 1991-08-30 1993-05-04 Howard W. DeMoore Coating apparatus for sheet-fed, offset rotary printing presses
US5335596A (en) * 1991-08-30 1994-08-09 Howard W. DeMoore Coating apparatus for sheet-fed, offset rotary printing presses
US5395447A (en) * 1993-11-03 1995-03-07 Wu; Ching C. Adjustable double-roller oil feeder
US5523123A (en) * 1994-07-15 1996-06-04 International Rolling Mill Consultants, Inc. Oil applicator and method for applying a film of oil to a metal strip
US5524465A (en) * 1991-03-29 1996-06-11 Hitachi, Ltd. Work rolls crossing type mill, rolling system and rolling method
US5638893A (en) * 1993-10-07 1997-06-17 Fata Hunter, Inc. Parting agent spray system
EP1025918A2 (en) * 1999-02-01 2000-08-09 SMS Demag AG Method and installation for forming metal strip
WO2003002277A1 (en) * 2001-06-28 2003-01-09 Sms Demag Aktiengesellschaft Method and device for cooling and lubricating rollers on a rolling stand
EP1398096A1 (en) * 2000-12-11 2004-03-17 Pechiney Rhenalu Method for making integrated circuit aluminium panels
US20040250756A1 (en) * 2001-09-04 2004-12-16 Andreas Lohr Device for applying lubricants on the peripheral surfaces of rollers in roll stands
US20070056690A1 (en) * 2005-09-13 2007-03-15 Superba Sealing head for machines for thermal treatment of filaments
US8230804B1 (en) 2008-09-03 2012-07-31 P&B Construction, Inc. Enclosed chamber, adjustable finish-applicator for flat and dimensional surfaces
US20140014035A1 (en) * 2012-07-13 2014-01-16 Fujifilm Corporation Coating apparatus and inkjet recording apparatus
US20140070020A1 (en) * 2011-02-17 2014-03-13 Akin MALAS Nozzle header
US10005114B2 (en) * 2015-04-10 2018-06-26 Primetals Technologies Austria GmbH Work roll cooling apparatus and method
EP3401029A1 (en) 2017-05-12 2018-11-14 Hydro Aluminium Rolled Products GmbH Device and method for embossing rollers with integrated roller cleaning

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2602700B1 (en) * 1986-08-14 1988-11-25 Bertin & Cie METHOD AND DEVICE FOR PROTECTING A STRIP AT THE ROLLER ROLL, ESPECIALLY AGAINST SPRAYING OF ROLLING LIQUID
DE19602004C5 (en) * 1995-02-13 2007-05-24 ACHENBACH BUSCHHüTTEN GMBH Cold rolling mill for fine and foil strip

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3192757A (en) * 1961-02-20 1965-07-06 Spidem Ste Nle Lubricating and cooling devices for rolling mill rolls
US3379044A (en) * 1965-01-14 1968-04-23 Kaiser Aluminium Chem Corp Cleaning device for a rolling mill
GB2058629A (en) * 1979-08-15 1981-04-15 Kobe Steel Ltd Lubrication in Metal-working Processes
US4272976A (en) * 1979-06-05 1981-06-16 Mesta Machine Company Hot strip rolling mill stand

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
CA924938A (en) * 1968-08-29 1973-04-24 L. Moxon Arthur Removal of coatings from the working roll of a rolling mill
GB1511247A (en) * 1974-06-11 1978-05-17 Alcan Res & Dev Method and apparatus for cooling the rolls of rolling mills
JPS5386445U (en) * 1976-12-17 1978-07-15

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3192757A (en) * 1961-02-20 1965-07-06 Spidem Ste Nle Lubricating and cooling devices for rolling mill rolls
US3379044A (en) * 1965-01-14 1968-04-23 Kaiser Aluminium Chem Corp Cleaning device for a rolling mill
US4272976A (en) * 1979-06-05 1981-06-16 Mesta Machine Company Hot strip rolling mill stand
GB2058629A (en) * 1979-08-15 1981-04-15 Kobe Steel Ltd Lubrication in Metal-working Processes

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4934444A (en) * 1987-10-23 1990-06-19 Lauener Engineering, Ltd. Device and method for cooling rolls
US4983248A (en) * 1987-12-16 1991-01-08 Somar Corporation Thin-film coating method and apparatus therefor
US4986873A (en) * 1988-01-30 1991-01-22 Somar Corporation Thin-film coating apparatus
US5048453A (en) * 1988-09-27 1991-09-17 Btg Kalle Inventing Ab Coating device
US5524465A (en) * 1991-03-29 1996-06-11 Hitachi, Ltd. Work rolls crossing type mill, rolling system and rolling method
US5207159A (en) * 1991-08-30 1993-05-04 Howard W. DeMoore Coating apparatus for sheet-fed, offset rotary printing presses
US5335596A (en) * 1991-08-30 1994-08-09 Howard W. DeMoore Coating apparatus for sheet-fed, offset rotary printing presses
US5638893A (en) * 1993-10-07 1997-06-17 Fata Hunter, Inc. Parting agent spray system
US5395447A (en) * 1993-11-03 1995-03-07 Wu; Ching C. Adjustable double-roller oil feeder
US5523123A (en) * 1994-07-15 1996-06-04 International Rolling Mill Consultants, Inc. Oil applicator and method for applying a film of oil to a metal strip
EP1025918A3 (en) * 1999-02-01 2003-09-17 SMS Demag AG Method and installation for forming metal strip
EP1025918A2 (en) * 1999-02-01 2000-08-09 SMS Demag AG Method and installation for forming metal strip
US6237384B1 (en) * 1999-02-01 2001-05-29 Sms Schloemann-Siemag Ag Method of and installation for shaping a metal strip
EP1398096A1 (en) * 2000-12-11 2004-03-17 Pechiney Rhenalu Method for making integrated circuit aluminium panels
US20040217184A1 (en) * 2001-06-28 2004-11-04 Jurgen Seidel Method and device for cooling and lubricating rollers on a rolling stand
US7159433B2 (en) 2001-06-28 2007-01-09 Sms Demag Ag Method and device for cooling and lubricating rollers on a rolling stand
WO2003002277A1 (en) * 2001-06-28 2003-01-09 Sms Demag Aktiengesellschaft Method and device for cooling and lubricating rollers on a rolling stand
US20040250756A1 (en) * 2001-09-04 2004-12-16 Andreas Lohr Device for applying lubricants on the peripheral surfaces of rollers in roll stands
US7322221B2 (en) * 2001-09-04 2008-01-29 Sms Demag Aktiengesellschaft Device for applying lubricants on the peripheral surfaces of rollers in roll stands
US20070056690A1 (en) * 2005-09-13 2007-03-15 Superba Sealing head for machines for thermal treatment of filaments
US7735343B2 (en) * 2005-09-13 2010-06-15 Superba (Sas) Sealing head for machines for thermal treatment of filaments
US8230804B1 (en) 2008-09-03 2012-07-31 P&B Construction, Inc. Enclosed chamber, adjustable finish-applicator for flat and dimensional surfaces
US8978437B2 (en) * 2011-02-17 2015-03-17 Linde Aktiengesellschaft Nozzle header
US20140070020A1 (en) * 2011-02-17 2014-03-13 Akin MALAS Nozzle header
US20140014035A1 (en) * 2012-07-13 2014-01-16 Fujifilm Corporation Coating apparatus and inkjet recording apparatus
US9321072B2 (en) * 2012-07-13 2016-04-26 Fujifilm Corporation Coating apparatus and inkjet recording apparatus
US10005114B2 (en) * 2015-04-10 2018-06-26 Primetals Technologies Austria GmbH Work roll cooling apparatus and method
EP3401029A1 (en) 2017-05-12 2018-11-14 Hydro Aluminium Rolled Products GmbH Device and method for embossing rollers with integrated roller cleaning
DE102017110413A1 (en) * 2017-05-12 2018-11-15 Hydro Aluminium Rolled Products Gmbh Device and method for embossing rolling with integrated roller cleaning
DE102017110413B4 (en) 2017-05-12 2018-11-29 Hydro Aluminium Rolled Products Gmbh Device and method for embossing rolling with integrated roller cleaning

Also Published As

Publication number Publication date
GR851799B (en) 1985-11-26
FR2568495A1 (en) 1986-02-07
HK81689A (en) 1989-10-20
YU44517B (en) 1990-08-31
MX167732B (en) 1993-04-07
KR890003801B1 (en) 1989-10-05
JPH0347933B2 (en) 1991-07-22
NO160973C (en) 1989-06-21
ES545791A0 (en) 1986-12-16
EP0172777B1 (en) 1988-04-20
ES8702182A1 (en) 1986-12-16
KR860001618A (en) 1986-03-20
ATE33566T1 (en) 1988-05-15
DE3562190D1 (en) 1988-05-26
AU4569785A (en) 1986-02-06
BR8503641A (en) 1986-05-06
YU125285A (en) 1988-06-30
NO160973B (en) 1989-03-13
IN162078B (en) 1988-03-26
AU575980B2 (en) 1988-08-11
JPS6146308A (en) 1986-03-06
NO853053L (en) 1986-02-03
RO94102B (en) 1988-03-31
EP0172777A1 (en) 1986-02-26
RO94102A (en) 1988-03-30
FR2568495B1 (en) 1986-10-24
TR23180A (en) 1989-06-06
SG31789G (en) 1989-12-22

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